Liberty Adult School classes: Offers morning and evening General Educational Development (GED) preparation and English as Second Language (ELS) classes. Ongoing open enrollment. 929 Second St., Brentwood. www.libertyadulted.org, 925-634-6525 for more information.

Free Document Shredding: Sponsored by Dow Credit Union, 10 a.m.-2 p.m. Oct. 20, 4041 Lone Tree Way, Antioch. East County residents can bring up to six grocery bags or three small boxes of paper for shredding. Participants must stay until their documents have been shredded. Rain or shine. 925-331-1010, www.dowcu.org.

Harvest Festival: Noon- 4 p.m. Oct. 20, Oakley Civic Center Plaza, 3231 Main St. Oakley. Pre-carved or decorated pumpkin contest, treats, pie-eating contest, face painting, games, crafts, vendors, and entertainment with Step to This and the East County Performing Arts dancers. Adults and children are encouraged to come in costume for a costume parade contest. Canine costume parade; participants register at the HALO booth beginning at 2 p.m.–all participants will receive a doggie bag. Sponsored by the city of Oakley. Admission and activities are free. 925-625-7044, coelho@ci.oakley.ca.us.

Black Diamond Trail Challengers: 8 a.m.-noon, Oct. 20, Round Valley Regional Preserve. Explore the natural and cultural history of our East Bay parks. Hike 5-10 miles in a different park each month. Must be 7 or older. Registration: 888-327-2757, or www.ebparks.org.

Movie In the Park: The whole family will enjoy “Casper the Friendly Ghost,” 6:30 p.m. Oct. 26, Brentwood City Park, 710 Second St. Bring lawn chairs, blankets, picnic dinner. Free. Sponsored by the city of Brentwood. 925-516-5444.

John Muir Health Caring Hands Cargivers Program: Is seeking volunteers to help the elderly and persons with disabilities to get to a doctor’s appointment, go to the grocery store, get hair cuts and other daily needs. Training is provided. For information, call Linda Groobin, 925-952-2999 or www.johnmuirhealth.com/caringhands.

Meals on Wheels: Seeking volunteer drivers for meal delivery routes in Pittsburg and Antioch. Commit two hours once a week between 10:30 a.m. and 12:30 p.m. Help make a tremendous difference in the lives of our seniors in need. Sharon Fitzgerald, 925-937-8607.

The News has changed how it collects and accepts calendar information. Readers must now submit all items through our website — go to www.contracostatimes.com, scroll down the right hand side of the home page to “Things to Do,” click on “submit event” and fill out the form. If you need a detailed “How to” tutorial, email bnews@bayareanewsgroup.com and one will be sent to you. Submitting your events in this way will ensure that they are part of our online searchable database.

More in News

The Center for Biological Diversity filed a lawsuit against the California Department of Fish and Wildlife, claiming the department's failure to prevent Dungeness crab gear from harassing, injuring and killing endangered whales and sea turtles violates the U.S. Endangered Species Act.

The report by the Public Policy Institute of California surveyed 204 school districts across California at the end of the 2016-17 school year about their progress in implementing the Next Generation Science Standards, which were adopted in 2013 and which schools are currently introducing.